ClarisWorks spreadsheet file
File type: Spreadsheet and workbook file
The .swss file extension identifies a spreadsheet file created by ClarisWorks.
The file can contain spreadsheet data and the formulas and formatting used to present it.
File type category:
Spreadsheet and workbook file
Date updated: September 27, 2026
SWSS is a native spreadsheet file format associated with ClarisWorks, the productivity software developed by Claris for Apple computers. It is one of the document types used by the software's integrated applications.
A ClarisWorks spreadsheet file stores worksheet data together with spreadsheet formulas and document formatting.
ClarisWorks was designed for Apple Macintosh computers and was also available for Mac OS X. The format is now a legacy format and is no longer in common use.
Open the .swss file with a compatible installation of ClarisWorks on an Apple Mac. The application may require an older Mac environment, because current macOS versions do not generally run legacy ClarisWorks software directly.
If the file does not open, use an older compatible Mac or a suitable legacy-system environment with ClarisWorks installed.
Open the file in ClarisWorks and use its Save As or export options to create a spreadsheet in another format, if the installed version provides a suitable option.
There may be no reliable modern converter for every ClarisWorks spreadsheet feature. Keep the original .swss file as a backup, because formulas and formatting may change during conversion.
Software applications that can open swss files:
Apple macOS / Mac OS X
Software applications that can edit swss files:
Apple macOS / Mac OS X
Software capable of saving swss files:
Apple macOS / Mac OS X
Software apps that create swss files:
Apple macOS / Mac OS X
Software apps that print swss files:
Apple macOS / Mac OS X
Software applications that handle other tasks involving swss files:
Apple macOS / Mac OS X
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